Clinker grinder and discharger for furnaces.



O. 0. WOOLSON. CLINKER GRINDER AND DISGHARGER FOR FUR NACES.

APPLICATION FILED JAILQO 191 i Patented Dec. 22, 1914.

wki'nasses:

UNITED srrnrns PATENT OFFICE;

OBOSCO C. WOOLSON, OF NEW YORK, N. Y.

CLINKEE' GRINDER AND DISCHARG-ER FOR FURNACES.

Specification of Letters Patent.

' Patented Dec. 22, 1914.

Application filed January 30, 1914. Serial No. 815,351.

To all whom it may concern:

Be it known that I, Oltosoo C. WOOLSON, a citizen of the United States, residin in New York city, in the county of New ork and State of New York, have invented certion, Fig. 3 a section at 3-3, and Fig. 4 a

section at 4:4t Fig. 1. Figs. 5 and 6 are cross sections illustrating different forms of bars for doweling or alining the grinder sections.

This apparatus is a variant (save in its novel features) of the disclosures made in said application, whose reference numerals are used with like significance herein.v As in that case, the furnace is constructed with an axial bearer frame F for the grate bars 9 and therein a front bearing 6, a rear-bearing and intermediate bearings '6 6 all coaxial, for the tubular grinder, .S; with hearth plates and shields, respectively 3 and 27, and a branch flue 30, connecting the bore of the grinder with the chimney flue. The grinder is made up of a front carrier or driver B, a rear carrier C and intermediate helically-toothcd grinders or-grinding sections D, revolubly mounted in said bearings; operably connected with said grinder is a power drive, comprising a ratchet wheel 8, crank L, and pawl 7 and the grinding sections are operably connected With the driver B by a prismatic bar R in their bore, said bars being preferably a Y or star section, as shown in Figs. 2 to 5 inclusive, although any shape having an engaging edge will operate satisfactorily, as illustrated in %he novel constructions are as follows: I simplify the connections of the sections of the grinder S with the bar R. Longitudinal engaging conformations d, are formed in the grinder sections, being preferably internal ribs, as illustrated in Fig. 4; and such conformations engage a margin or margins of the bar R. Said bar is cut to length and confined in the bore of the grinder S between across bar or spider 5 formed in the carrier C, and a transverse pin 12 inserted in and removable from the driver'B.

I adapt the grinder-S to be hand-driven independently of the ratchet and pawl drive, by forming a polygonal terminal crank-socket S in the exposed endof the driver 13, or other suitable arrangement.

I provide effective cooling for the driver B by making in its wall, adjacent to its inward bearing 6 holes B through which it draws air supply which circulates about and prevents excessive temperatures in said driver.

As in said allowed application'the grinder S is cooled by a current of air drawn through its bore by the suction of a flue 30 with which it communicates. To prevent heavy particles from clogging said flue, 1-

bed inthe rear wall of the furnace an expanding T, 30", whose small inner branch is separated by a measurable space from the carrier C, to provide for its expansion, and which is loosely connected therewith by a nipple 30 driven into said T; whose transverse branch communicates with'the flue 30; and whose outward branch expands and is connected, by a nipple 32 and L, 31 with a sump 31, preferably made of'as large a pipe ascan be conveniently used. A removable cap 31 and plug 31 respectively closing, and opposite to the end of, the sump pipe 31, permit the sump to be periodically cleaned out.

The simple mode of connecting the bar R and grinder S considerably cheapens the first cost and the assembling of the apparatus,

- and claim 2 ioness ic...ible one of creche, otherwise caiitatc .reinowil of the bar B when or replacements ere necessar- I or the grinder a normally plugged 11g through which a. rod cenbe in to drive out the bar R01 for cleaning the bore of the grinder. In this instance the .J

escrioed in said. allowed application, conformations of the sections of the r are such that the grinders D can rted or'lif'ted out, when the bar R is lace; r ting time described my invention, I

1.1m sectional, tubular clinker grinders 'revolubly mounted beneath furnacefire bones comprising engaging tubular end and intermediate grinding sections and a extending through and connecting said sections, the-comb nation therewith of engsging conformations on sand bar and on of saidgrinding sections, said en eging conformations on said bar and grinding sections being spaced from one another to form continuous freeassages of air through adjacent sections rom one to the other, said end housing-sections extending out of the furnace proper so-tliat the aforesaid cont. nous airpassoges have inlets and outlets externally of said furnace proper.

2-. sectional, tubular clinker grinders re? Iblymounted beneath. .furnace fire nd comprising engaging tubular end :ntermediate grinding sections and--21 bar extending; through and connecting-said sections, tlic combinatior. therewith of en gaging conformations on said bar and on eaclroi said grinding sections, said engagingconfcrmations on said bar and grinding sections being spaced. from one another to form continuous free passages of air through adjacent sections from one to the other, said end. housing sections extending out of the furnace proper so that the aforesaid continuous air passages have inlets and outlets externally ofsaid furnace proper,

and a cranlr -engagirig, conformationa exposed end of the outward. section of said grinder. I i

3. In scctionohtubular clinker grinders 'revolubly mounted-in bearings beneath fur aqniace fire boxes and comprising engaging tubular end and intermediate grinding sections and a bar extendingtnrougli and contocctin said sections, the combination therecooling means comprising perforaof the hearth section of said Clfi-llOitXlfil with. and in the rear 0 the.

therear of said grinder.

5. In combination with a sectional tube. lar clinker grinder revoluble in bearings beneath a furnace fire box and comprising engaging tubular end and intermediate grinding sections provided with air inlets a-nd'connectedwithafiue,there being a bore throughout said sectional tubular clinker grinder, a sump connected with said bore andfiue.

fi ln combination witlrs. sectional tubular clinker grinder revoluble in bearings beneath a'furnace fire box and com rising engaging tubular end and intermediate grinding sectionsv provided with air inlets and connected with a flue, therebeing a bore throughout said sectional tubular clinker grinder, a T .connectingsaid boreand flue and a sump connected with said T.

7. Incombination with a sectional tubular clinker grinder revoluble in bearings bemouth a furnace fire box and comprising engaging tubular end and intermediate grindmg sections provided with air inlets and connected with a flue, there being a bore throughout said sectional tubular clinker grinder, a fittingcoimecting said bore and fine, a sump, and an expandingfitting conmeeting said bore and fluewith said sump.

1 8. In combination with 2; sectional tubular clinker grinder rcvoluble in bearingsv beneath a furnace fire box and comprising engaging tubular end and intermediate grinding sections provided with air inlets and connected with a flue, there being abore throughout said sectional tubular clinker grinder, a fitting connecting saidbore and "flue, a sump, an expanding fitting connecting said bore andflue with said sump, a removable capto, and an opposite removable plug in a wall ofsaid sump and a. remow able plug coaxial with the bore of said grinder.

9. In sectional, clinker gnndersrevolubly mountedbeneath furnace fire boxes and comgrising engaging end and intermediate housing sections and .a shaft extending.

through and connecting said sections, the

combination therewith of engaging oonformations on said shaft and on each of said grinding sections, said engaging conformations on said shaft and grinding sections being spaced from one another to form continuous free passages of air through adjacent sections from one to the other, said enci housing sections extending outside of the farnsce I. aforosaid oonnr'm lets and out-si ex proper.

Witnessss:

1.13 ELDENNEZ, J, moans. 

